Fig. 4From: Elucidation of the biosynthesis pathway and heterologous construction of a sustainable route for producing umbelliferoneComparison of different strains for the production of umbelliferone. Red and blue bars represent the umbelliferone concentration in 24 h and 48 h, respectively. The characteristics of different strains used in this experiment are listed in Table 3. All data are represented as mean ± SD from three independent experiments (n = 3). Error bars are defined as SDBack to article page